In the Linux kernel, the following vulnerability has been resolved:
mac802154: Fix potential RCU dereference issue in mac802154_scan_worker
In the `mac802154_scan_worker` function, the `scan_req->type` field was
accessed after the RCU read-side critical section was unlocked. According
to RCU usage rules, this is illegal and can lead to unpredictable
behavior, such as accessing memory that has been updated or causing
use-after-free issues.
This possible bug was identified using a static analysis tool developed
by myself, specifically designed to detect RCU-related issues.
To address this, the `scan_req->type` value is now stored in a local
variable `scan_req_type` while still within the RCU read-side critical
section. The `scan_req_type` is then used after the RCU lock is released,
ensuring that the type value is safely accessed without violating RCU
rules.
References
Configurations
Configuration 1 (hide)
|
History
07 Nov 2024, 19:27
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/e676e4ea76bbe7f1156d8c326b9b6753849481c2 - Patch | |
| References | () https://git.kernel.org/stable/c/d18f669461811dfe2915d5554ab2a9834f810013 - Patch | |
| References | () https://git.kernel.org/stable/c/bff1709b3980bd7f80be6786f64cc9a9ee9e56da - Patch | |
| References | () https://git.kernel.org/stable/c/540138377b22f601f06f55ebfa3ca171dcab471a - Patch | |
| First Time |
Linux
Linux linux Kernel |
|
| CPE | cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
|
| CWE | CWE-416 | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.8 |
21 Oct 2024, 19:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2024-10-21 19:15
Updated : 2024-11-07 19:27
NVD link : CVE-2024-50005
Mitre link : CVE-2024-50005
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-416
Use After Free